Test Statistics
b
Candida albicans Mann-Whitney U
5.500 Wilcoxon W
26.500 Z
-2.091 Asymp. Sig. 2-tailed
.037 Exact Sig. [21-tailed
Sig.] .041
a
a. Not corrected for ties. b. Grouping Variable: Perlakuan
• PADA KELOMPOK A DAN D
Ranks Perlakuan
N Mean
Rank Sum of Ranks
Candida albicans
Perendaman Vinegar Apel 5
6 3.50
21.00 Perendaman NaCl
0,9 6
9.50 57.00
Total 12
Test Statistics
b
Candida albicans Mann-Whitney U
.000 Wilcoxon W
21.000 Z
-2.908 Asymp. Sig. 2-
tailed .004
Exact Sig. [21- tailed Sig.]
.002
a
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• PADA KELOMPOK B DAN C
Ranks
Perlakuan N Mean Rank
Sum of Ranks Candida
albicans Perendaman Vinegar Apel
6,23 6
7.08 42.50
Perendaman Sodium Hipoklorit 1
6 5.92
35.50 Total
12 Test Statistics
b
Candida albicans Mann-Whitney U
14.500 Wilcoxon W
35.500 Z
-.632 Asymp. Sig. 2-tailed
.527 Exact Sig. [21-tailed Sig.]
.589
a
a. Not corrected for ties. b. Grouping Variable: Perlakuan
• PADA KELOMPOK B DAN D
Ranks
Perlakuan N
Mean Rank
Sum of Ranks Candida
albicans Perendaman Vinegar
Apel 6,23 6
3.50 21.00
Perendaman NaCl 0,9
6 9.50
57.00 Total
12
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Test Statistics
b
Candida albicans Mann-Whitney U
.000 Wilcoxon W
21.000 Z
-2.908 Asymp. Sig. 2-tailed
.004 Exact Sig. [21-tailed
Sig.] .002
a
a. Not corrected for ties. b. Grouping Variable: Perlakuan
• PADA KELOMPOK C DAN D
Ranks
Perlakuan N
Mean Rank
Sum of Ranks Candida
albicans Perendaman Sodium
Hipoklorit 1 6
3.50 21.00
Perendaman NaCl 0,9
6 9.50
57.00 Total
12 Test Statistics
b
Candida albicans Mann-Whitney U
.000 Wilcoxon W
21.000 Z
-2.934 Asymp. Sig. 2-tailed
.003 Exact Sig. [21-tailed
Sig.] .002
a
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Lampiran 4 Surat Keterangan Selesai Penelitian Laboratorium Mikrobiologi FMIPA USU
Universitas Sumatera Utara
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biofilm formed on polymethyl methacrylate: effects on residul biofilm and recolonization process. BMC Oral Health 2014; 14: 77.
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a removing agent of Candida albicans from acrylic resin plates. Jundishapur J Microbiol 2012; 52: 388-92.
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and alternative antifungal therapies to oral candidiasis. Brazilian Journal of Microbiology 2010; 41: 824-31.
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alternative methods for the disinfection of toothbrushes. Braz Oral Res 2010; 241: 28-33.
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23. Pisani MX, Silva CHL, Paranhos HFO, Souza RF, Macedo AP. The effect of
experimental denture cleanser solution Ricinus communis on acrylic resin properties. Materials Research 2010; 133: 369-73.
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27. David, Munadziroh E. Perubahan warna lempeng resin akrilik yang direndam
dalam larutan desinfektan sodium hipoklorit dan klorhexidin. Maj Ked Gigi Dent J 2005; 381: 36-40.
28. Joseph RM. Comparison of efficacy of sodium hypochlorite with sodium
perborate in the removal of stains from heat cured clear acrylic resin. The Journal of Indian Prosthodontic Society 2009; 91: 6-11.
29. Uludamar A, Özkan YK, Kadir T, Ceyhan I. In vivo efficacy of alkaline
peroxide tablets and mouthwashes on Candida albicans in patients with denture stomatitis. J Appl Oral Sci 2010; 183: 291-6.
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33. Mey Bengkulen. Dunia biosains. http:dunianyabiosains.blogspot.com200901
sejuta-pesona-buah-apel.html. 28 Januari 2009. 21 September 2015. 34.
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acrylic denture resins. OHDMBSC 2010; 91: 21-4. 45.
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different denture base resind repaired by various materials an methods: An in vitro study. J Dent Sci 2010; 11: 66-73.
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55. Animated-Teeth.com. Homemade denture cleansers. http:www.animated
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BAB 3 METODE PENELITIAN
3.1 Rancangan Penelitian
Penelitian ini merupakan jenis penelitian eksperimental laboratoris dengan menggunakan desain post test only control group.
3.2 Sampel dan Besar Sampel Penelitian 3.2.1 Sampel Penelitian
Sampel pada penelitian ini menggunakan RAPP dengan bentuk lempeng uji berukuran 10 mm x 10 mm x 1 mm sesuai dengan ANSIADA Standard No.12 tahun
2002 Gambar 5.
40
Gambar 5. Bentuk dan ukuran sampel
3.2.2 Besar Sampel Penelitian
Jumlah sampel penelitian ditentukan berdasarkan rumus Federer:
56
t - 1 r - 1 ≥ 15
Keterangan: t: jumlah perlakuan
r: jumlah ulangan Penelitian ini terdapat 4 kelompok sampel untuk setiap pengujian, maka t = 4
dan jumlah sampel r setiap kelompok dapat ditentukan sebagai berikut:
1 mm 10 mm
10 mm
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4 - 1 r - 1 ≥ 15
3r - 1 ≥ 15
3r – 3 ≥ 15
3r ≥ 15 + 3
3r ≥ 18
r ≥ 183
r ≥ 6
r = 6 Jumlah sampel untuk masing-masing kelompok adalah 6, maka jumlah
keseluruhan sampel sebanyak 24 buah lempeng uji.
3.3 Variabel Penelitian dan Definisi Operasional 3.3.1 Klasifikasi Variabel
